INFLUENCE OF ANGULAR DIMENSIONS, DURATION AND SHAPE OF STIMULI ON THE ORDER IN WHICH VISUAL SIGNALS ARE PERCEIVED

The authors describe random experiments to determine the interval necessary between optical stimuli in order that the latter be perceived as distinct and be put in correct order by the subject. A study is also conducted of various optical phenomena (impression of cone given by close sequences, luminous circles varying in diameter, impression of shrinking or widening). (TRRL)